zotero/scss/elements/_attachmentBox.scss

attachment-box {
	display: flex;
	flex-direction: column;

	&[hidden] {
		display: none;
	}

	&:not([data-use-preview]) {
		attachment-preview {
			visibility: hidden;
			display: none;
		}
	}

	.body {
		display: flex;
		flex-direction: column;
		gap: 2px;
	}

	.metadata-table {
		@include meta-table;

		#index-status {
			padding-inline: var(--editable-text-padding-inline);
			margin-top: 2px;
			@include comfortable {
				margin-top: 3px;
			}
		}

		#reindex
		{
			height: 22px;
			width: 22px;
			padding: 1px;
			margin-left: 4px;
			@include svgicon-menu("sync", "universal", "20");
			&:not([disabled='true']) {
				color: var(--fill-secondary);
			}
		}
	}

	#url
	{
		padding: 1px 0;
	}

	#note-container {
		display: flex;
		flex-direction: column;
		flex: 1;
		overflow: hidden;
		margin: 4px 0;

		&[hidden] {
			display: none;
		}

		#attachment-note-editor {
			margin: 4px 0;
			display: flex;
			height: 300px;
	
			&[hidden] {
				display: none;
			}
		}
	}
}